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Functionalized Spirocyclic Heterocycle Synthesis and Cytotoxicity Assay
Published on: February 9, 2021
Fluorescent cisplatin analogues and cytotoxic activity
E Rodríguez-Fernández1, J L Manzano, A Alonso
1Departamento de Química Inorgánica, Facultad de Farmacia, Campus Miguel de Unamuno, Universidad de Salamanca, 37007-Salamanca, Spain.
Current Medicinal Chemistry
|September 17, 2009
Summary
Novel platinum (Pt) compounds derived from bile acids exhibit stable fluorescence and enhanced anti-cancer activity. These intrinsically fluorescent Pt-derivatives overcome cisplatin resistance and show potent cytotoxicity against both cycling and resting cancer cells.
Area of Science:
- Medicinal Chemistry
- Biochemistry
- Oncology
Background:
- Cisplatin is a widely used chemotherapy agent for various cancers.
- Cisplatin resistance necessitates the development of new platinum (Pt) compounds.
- Reporting Pt-compounds, including fluorescent derivatives, are being explored to overcome resistance.
Purpose of the Study:
- To review reporting Pt-compounds, focusing on novel, intrinsically fluorescent bile acid Pt derivatives.
- To investigate the biochemical characteristics and biological activity of these new Pt-derivatives.
- To evaluate their potential in overcoming cisplatin resistance and their mechanism of action.
Main Methods:
- Synthesis of intrinsically fluorescent bile acid Pt-compounds.
- Analysis of DNA binding modes using flow injection and fluorescence techniques.
- Assessment of cytotoxicity and resistance-overcoming ability in various cancer cell lines.
Main Results:
- Bile acid Pt-compounds exhibit stable fluorescence, even after binding to DNA.
- These compounds form distinct DNA adducts compared to cisplatin.
- They demonstrate increased cytotoxicity and overcome cisplatin resistance in multiple cell lines.
- Unlike cisplatin, they show activity against both cycling and resting cells.
Conclusions:
- Intrinsically fluorescent bile acid Pt-derivatives represent a promising new class of anti-cancer agents.
- Their unique DNA binding and broad activity spectrum offer advantages over cisplatin.
- Further research into these compounds could lead to improved cancer therapies.
